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const const const

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This commit is contained in:
Quaternions 2023-10-13 16:27:36 -07:00
parent 8fea9e0025
commit 4e98e9a577
2 changed files with 25 additions and 16 deletions
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30
src/integer.rs
View File

@ -78,7 +78,7 @@ impl std::ops::Div<i64> for Time{
}
#[inline]
fn gcd(mut a:u64,mut b:u64)->u64{
const fn gcd(mut a:u64,mut b:u64)->u64{
while b!=0{
(a,b)=(b,a.rem_euclid(b));
};
@ -93,7 +93,7 @@ impl Ratio64{
pub const ZERO:Self=Ratio64{num:0,den:unsafe{std::num::NonZeroU64::new_unchecked(1)}};
pub const ONE:Self=Ratio64{num:1,den:unsafe{std::num::NonZeroU64::new_unchecked(1)}};
#[inline]
pub fn new(num:i64,den:u64)->Option<Ratio64>{
pub const fn new(num:i64,den:u64)->Option<Ratio64>{
match std::num::NonZeroU64::new(den){
Some(_)=>{
let d=gcd(num.unsigned_abs(),den);
@ -306,6 +306,7 @@ impl Angle32{
}
*/
}
const ANGLE32_FLOAT64_PI:f64=(1i64<<31) as f64;
impl Into<f32> for Angle32{
#[inline]
fn into(self)->f32{
@ -380,22 +381,25 @@ impl Planar64{
pub const ZERO:Self=Self(0);
pub const ONE:Self=Self(1<<32);
#[inline]
pub fn int(num:i32)->Self{
pub const fn int(num:i32)->Self{
Self(Self::ONE.0*num as i64)
}
#[inline]
pub fn raw(num:i64)->Self{
pub const fn raw(num:i64)->Self{
Self(num)
}
#[inline]
pub fn get(&self)->i64{
pub const fn get(&self)->i64{
self.0
}
}
const PLANAR64_FLOAT32_ONE:f32=(1u64<<32) as f32;
const PLANAR64_FLOAT32_MUL:f32=1.0/PLANAR64_FLOAT32_ONE;
const PLANAR64_FLOAT64_ONE:f64=(1u64<<32) as f64;
impl Into<f32> for Planar64{
#[inline]
fn into(self)->f32{
self.0 as f32*(1.0/(1<<32) as f32)
self.0 as f32*PLANAR64_FLOAT32_MUL
}
}
impl From<Ratio64> for Planar64{
@ -519,7 +523,7 @@ impl Planar64Vec3{
pub const MIN:Self=Planar64Vec3(glam::I64Vec3::MIN);
pub const MAX:Self=Planar64Vec3(glam::I64Vec3::MAX);
#[inline]
pub fn int(x:i32,y:i32,z:i32)->Self{
pub const fn int(x:i32,y:i32,z:i32)->Self{
Self(glam::i64vec3((x as i64)<<32,(y as i64)<<32,(z as i64)<<32))
}
#[inline]
@ -592,7 +596,7 @@ impl Into<glam::Vec3> for Planar64Vec3{
self.0.x as f32,
self.0.y as f32,
self.0.z as f32,
)*(1.0/(1<<32) as f32)
)*PLANAR64_FLOAT32_MUL
}
}
impl TryFrom<[f32;3]> for Planar64Vec3{
@ -731,7 +735,7 @@ impl Planar64Mat3{
z_axis,
}
}
pub fn int_from_cols_array(array:[i32;9])->Self{
pub const fn int_from_cols_array(array:[i32;9])->Self{
Self{
x_axis:Planar64Vec3::int(array[0],array[1],array[2]),
y_axis:Planar64Vec3::int(array[3],array[4],array[5]),
@ -740,9 +744,9 @@ impl Planar64Mat3{
}
#[inline]
pub fn from_rotation_y(angle:Angle32)->Self{
let theta=angle.0 as f64*(std::f64::consts::PI/((1<<31) as f64));
let theta=angle.0 as f64*(std::f64::consts::PI/ANGLE32_FLOAT64_PI);
let (s,c)=theta.sin_cos();
let (c,s)=(c*((1<<32) as f64),s*((1<<32) as f64));
let (c,s)=(c*PLANAR64_FLOAT64_ONE,s*PLANAR64_FLOAT64_ONE);
//TODO: fix this rounding towards 0
let (c,s):(i64,i64)=(unsafe{c.to_int_unchecked()},unsafe{s.to_int_unchecked()});
Self::from_cols(
@ -814,8 +818,8 @@ impl Into<glam::Mat4> for Planar64Affine3{
self.matrix3.x_axis.0.x as f32,self.matrix3.x_axis.0.x as f32,self.matrix3.x_axis.0.x as f32,0.0,
self.matrix3.y_axis.0.x as f32,self.matrix3.y_axis.0.x as f32,self.matrix3.y_axis.0.x as f32,0.0,
self.matrix3.z_axis.0.x as f32,self.matrix3.z_axis.0.x as f32,self.matrix3.z_axis.0.x as f32,0.0,
self.translation.0.x as f32,self.translation.0.y as f32,self.translation.0.z as f32,(1<<32) as f32
])*(1.0/(1<<32) as f32)
self.translation.0.x as f32,self.translation.0.y as f32,self.translation.0.z as f32,PLANAR64_FLOAT32_ONE
])*PLANAR64_FLOAT32_MUL
}
}
impl TryFrom<glam::Affine3A> for Planar64Affine3{

11
src/primitives.rs
View File

@ -18,7 +18,12 @@ pub enum CubeFace{
Bottom,
Front,
}
const CUBE_DEFAULT_TEXTURE_COORDS:[TextureCoordinate;4]=[[0.0,0.0].into(),[1.0,0.0].into(),[1.0,1.0].into(),[0.0,1.0].into()];
const CUBE_DEFAULT_TEXTURE_COORDS:[TextureCoordinate;4]=[
TextureCoordinate::new(0.0,0.0),
TextureCoordinate::new(1.0,0.0),
TextureCoordinate::new(1.0,1.0),
TextureCoordinate::new(0.0,1.0),
];
const CUBE_DEFAULT_VERTICES:[Planar64Vec3;8]=[
Planar64Vec3::int(-1,-1, 1),//0 left bottom back
Planar64Vec3::int( 1,-1, 1),//1 right bottom back
@ -140,11 +145,11 @@ pub fn unit_cube()->crate::model::IndexedModel{
t.insert(CubeFace::Front,FaceDescription::default());
generate_partial_unit_cube(t)
}
const TEAPOT_TRANSFORM:crate::integer::Planar64Mat3=crate::integer::Planar64Mat3::int_from_cols_array([0,1,0, -1,0,0, 0,0,1])/10;
const TEAPOT_TRANSFORM:crate::integer::Planar64Mat3=crate::integer::Planar64Mat3::int_from_cols_array([0,1,0, -1,0,0, 0,0,1]);
pub fn unit_cylinder()->crate::model::IndexedModel{
let mut indexed_model=crate::model::generate_indexed_model_list_from_obj(obj::ObjData::load_buf(&include_bytes!("../models/teapot.obj")[..]).unwrap(),Color4::ONE).remove(0);
for pos in indexed_model.unique_pos.iter_mut(){
*pos=TEAPOT_TRANSFORM*(*pos);
*pos=TEAPOT_TRANSFORM*(*pos)/10;
}
indexed_model
}